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Gas Station in San Marcos
97 gas station businesses in San Marcos, United States. All San Marcos businesses →
At a glance
As of August 2026, business.wiki lists 97 gas station businesses in San Marcos— 1.2% of the city's 8,221 listed businesses. 80% publish a phone number and 94% have a website, spread across 40 postcode districts. The largest local presence is Shell with 20 locations in the city.
Where in San Marcos: 78666 (42)·92069 (8)·92078 (3)·78666-1648 (2)·78666-4416 (2)·78666-5482 (2)·78666-6849 (2)·78666-7224 (2)
Chains here: Shell ×20·Exxon ×9·Sunoco ×7·Sac n Pac ×6·Valero ×5
Directory — top 30 by data completeness
| Business | Address | Postcode | Phone | Web |
|---|---|---|---|---|
| Shell | 934 N I-35 | 78666-7028 | +15126739191 | ✓ |
| Shell | 207 N Interstate 35 | 78666-6849 | +15123924040 | ✓ |
| Shell | 1525 Aquarena Springs Dr | 78666-7262 | +15123538546 | ✓ |
| Texaco | 15610 N TX-123 | 78666-2398 | +15126677330 | ✓ |
| ARCO | 1187 W San Marcos Blvd | 92078-4008 | +17604716277 | ✓ |
| Texaco | 1702 N I-35 | 78666-6714 | +15123921865 | ✓ |
| San Marcos Truck Stop | 207 N Interstate 35 | 78666-6849 | +15123924040 | ✓ |
| Sunrise Market | 2745 Hunter Rd | 78666-5482 | +15126679315 | ✓ |
| Sunoco | 3936 IH-35 S | 78666-9375 | +18007866261 | ✓ |
| Exxon | 1636 Aquarena Springs Dr | 78666-7224 | +15123538303 | ✓ |
| Sunoco | 1200 Highway 80 | 78666-8100 | +15123928635 | ✓ |
| Murphy USA | 1201 Highway 80 | 78666 | +15123922084 | ✓ |
| Valero | 1702 Aquarena Springs Dr | 78666 | +15123535072 | ✓ |
| Sunoco | 1903 N Interstate 35 | 78666-6717 | +15123530162 | ✓ |
| Exxon | 339 N Guadalupe St | 78666-5609 | +15123962000 | ✓ |
| Shell | 1214 IH-35 S | 78666-7727 | +15123923143 | ✓ |
| Conoco | 1101 TX-123 | 78666 | +15123532044 | ✓ |
| Exxon | 2041 S Interstate 35 | 78666-5684 | +15123928000 | ✓ |
| Chevron | 115 Wonder World Dr | 78666-5936 | +15123921833 | ✓ |
| Chevron | 1710 San Elijo Rd | 92078-2043 | +17607987794 | ✓ |
| Shell | 679 W San Marcos Blvd | 92078-1219 | +17604715399 | ✓ |
| 76 | 190 W San Marcos Blvd | 92069 | +19496033406 | ✓ |
| Rancho Santa Fe Gas | 105 S Rancho Santa Fe Rd | 92078-2501 | +17604715448 | ✓ |
| Chevron | 1200 W San Marcos Blvd | 92078-4011 | +17604719190 | ✓ |
| Exxon | 2700 Hunter Rd | 78666-6465 | +15123960851 | ✓ |
| Shell | 2745 Hunter Rd | 78666-5482 | +15126679315 | ✓ |
| Fast Break | 1636 Aquarena Springs Dr | 78666-7224 | +15123538303 | ✓ |
| Shell | 1200 HIGHWAY 80 | 78666-8100 | +15123926561 | ✓ |
| Shell | 1699 N Interstate 35 | 78666-6735 | +15123922010 | ✓ |
| Shell | 799 N LBJ Dr | 78666 | (512) 392-2133 | ✓ |
Showing the 30 most complete records of 97 total. Every listed business has its own page with map, nearby competitors and city context.
About this data
Counts are computed live from our database of 8,221 San Marcos businesses, built on open data from the Overture Maps Foundation and refreshed with each monthly release. Cite as: “business.wiki, Gas Station in San Marcos (August 2026)”.